Meera Meghpara, H. M. Karavadiya and V. J. Kaneria (2021) “A Study on $\alpha-$graceful Labeling of Spade Graph”, International Journal of Mathematics And its Applications, 9(1), pp. 113–117. Available at: http://ijmaa.in/index.php/ijmaa/article/view/108 (Accessed: 6 May 2024).